./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:46:51,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:46:51,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:46:51,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:46:51,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:46:51,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:46:51,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:46:51,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:46:51,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:46:51,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:46:51,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:46:51,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:46:51,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:46:51,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:46:51,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:46:51,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:46:51,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:46:51,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:46:51,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:46:51,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:46:51,691 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:46:51,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:46:51,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:46:51,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:46:51,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:46:51,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:46:51,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:46:51,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:46:51,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:46:51,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:46:51,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:46:51,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:46:51,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:46:51,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:46:51,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:46:51,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:46:51,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:46:51,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:46:51,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:46:51,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:46:51,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:46:51,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:46:51,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:46:51,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:46:51,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:46:51,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:46:51,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:46:51,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:46:51,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:46:51,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:46:51,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:46:51,725 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:46:51,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:46:51,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:46:51,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:46:51,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:46:51,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:46:51,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:46:51,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:46:51,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:46:51,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:46:51,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:46:51,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:46:51,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:46:51,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:46:51,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:46:51,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:46:51,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:46:51,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:46:51,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:46:51,729 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:46:51,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:46:51,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:46:51,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b [2022-07-23 00:46:51,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:46:51,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:46:51,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:46:51,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:46:51,946 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:46:51,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-23 00:46:51,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634f41cf8/9cae3d7efa20496f93053bc5775383ae/FLAGb8bde2fc4 [2022-07-23 00:46:52,547 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:46:52,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-23 00:46:52,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634f41cf8/9cae3d7efa20496f93053bc5775383ae/FLAGb8bde2fc4 [2022-07-23 00:46:53,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634f41cf8/9cae3d7efa20496f93053bc5775383ae [2022-07-23 00:46:53,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:46:53,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:46:53,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:46:53,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:46:53,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:46:53,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:46:53" (1/1) ... [2022-07-23 00:46:53,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ee675a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:53, skipping insertion in model container [2022-07-23 00:46:53,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:46:53" (1/1) ... [2022-07-23 00:46:53,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:46:53,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:46:54,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2022-07-23 00:46:54,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:46:54,214 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:46:54,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2022-07-23 00:46:54,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:46:54,462 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:46:54,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54 WrapperNode [2022-07-23 00:46:54,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:46:54,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:46:54,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:46:54,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:46:54,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,647 INFO L137 Inliner]: procedures = 244, calls = 1516, calls flagged for inlining = 92, calls inlined = 80, statements flattened = 2942 [2022-07-23 00:46:54,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:46:54,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:46:54,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:46:54,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:46:54,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:46:54,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:46:54,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:46:54,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:46:54,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (1/1) ... [2022-07-23 00:46:54,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:46:54,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:46:54,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:46:54,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:46:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-23 00:46:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-23 00:46:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-07-23 00:46:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-07-23 00:46:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-07-23 00:46:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-23 00:46:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-23 00:46:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-23 00:46:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-23 00:46:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2022-07-23 00:46:54,829 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2022-07-23 00:46:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:46:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:46:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:46:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:46:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:46:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:46:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2022-07-23 00:46:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2022-07-23 00:46:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2022-07-23 00:46:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2022-07-23 00:46:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-23 00:46:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-23 00:46:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:46:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:46:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2022-07-23 00:46:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2022-07-23 00:46:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2022-07-23 00:46:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2022-07-23 00:46:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-23 00:46:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-23 00:46:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2022-07-23 00:46:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2022-07-23 00:46:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2022-07-23 00:46:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2022-07-23 00:46:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2022-07-23 00:46:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2022-07-23 00:46:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:46:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:46:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:46:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:46:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2022-07-23 00:46:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2022-07-23 00:46:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2022-07-23 00:46:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2022-07-23 00:46:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2022-07-23 00:46:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2022-07-23 00:46:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-23 00:46:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-23 00:46:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2022-07-23 00:46:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2022-07-23 00:46:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:46:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:46:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2022-07-23 00:46:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2022-07-23 00:46:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2022-07-23 00:46:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2022-07-23 00:46:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2022-07-23 00:46:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2022-07-23 00:46:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2022-07-23 00:46:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2022-07-23 00:46:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:46:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:46:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:46:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2022-07-23 00:46:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2022-07-23 00:46:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-07-23 00:46:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-07-23 00:46:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:46:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2022-07-23 00:46:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2022-07-23 00:46:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-23 00:46:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 00:46:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 00:46:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-23 00:46:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-07-23 00:46:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-23 00:46:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2022-07-23 00:46:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2022-07-23 00:46:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2022-07-23 00:46:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2022-07-23 00:46:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-23 00:46:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-23 00:46:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-23 00:46:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-23 00:46:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-07-23 00:46:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-07-23 00:46:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-23 00:46:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-23 00:46:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 00:46:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 00:46:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:46:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:46:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:46:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2022-07-23 00:46:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2022-07-23 00:46:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-07-23 00:46:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-07-23 00:46:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-23 00:46:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-23 00:46:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:46:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2022-07-23 00:46:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2022-07-23 00:46:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-23 00:46:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-23 00:46:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2022-07-23 00:46:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2022-07-23 00:46:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:46:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2022-07-23 00:46:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2022-07-23 00:46:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2022-07-23 00:46:54,868 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2022-07-23 00:46:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:46:54,869 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:46:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2022-07-23 00:46:54,871 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2022-07-23 00:46:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2022-07-23 00:46:54,871 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2022-07-23 00:46:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-07-23 00:46:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-07-23 00:46:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:46:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2022-07-23 00:46:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2022-07-23 00:46:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-23 00:46:54,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-23 00:46:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:46:54,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:46:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-23 00:46:54,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-23 00:46:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:46:54,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:46:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-07-23 00:46:54,876 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-07-23 00:46:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:46:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:46:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:46:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2022-07-23 00:46:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2022-07-23 00:46:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-07-23 00:46:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-07-23 00:46:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:46:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 00:46:54,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 00:46:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:46:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:46:54,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:46:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2022-07-23 00:46:54,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2022-07-23 00:46:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-07-23 00:46:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-07-23 00:46:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2022-07-23 00:46:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2022-07-23 00:46:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2022-07-23 00:46:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2022-07-23 00:46:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2022-07-23 00:46:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2022-07-23 00:46:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-23 00:46:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-23 00:46:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-23 00:46:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-23 00:46:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-23 00:46:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-23 00:46:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2022-07-23 00:46:54,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2022-07-23 00:46:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 00:46:54,881 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 00:46:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-23 00:46:54,881 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-23 00:46:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2022-07-23 00:46:54,882 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2022-07-23 00:46:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:46:54,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:46:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-23 00:46:54,882 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-23 00:46:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:46:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 00:46:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 00:46:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2022-07-23 00:46:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2022-07-23 00:46:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2022-07-23 00:46:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2022-07-23 00:46:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2022-07-23 00:46:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2022-07-23 00:46:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2022-07-23 00:46:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2022-07-23 00:46:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:46:54,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:46:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:46:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:46:55,352 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:46:55,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:46:55,555 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:46:56,844 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:46:56,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:46:56,856 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:46:56,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:46:56 BoogieIcfgContainer [2022-07-23 00:46:56,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:46:56,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:46:56,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:46:56,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:46:56,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:46:53" (1/3) ... [2022-07-23 00:46:56,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebc2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:46:56, skipping insertion in model container [2022-07-23 00:46:56,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:46:54" (2/3) ... [2022-07-23 00:46:56,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebc2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:46:56, skipping insertion in model container [2022-07-23 00:46:56,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:46:56" (3/3) ... [2022-07-23 00:46:56,864 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-23 00:46:56,873 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:46:56,874 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:46:56,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:46:56,943 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76d232d1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@327c9ca2 [2022-07-23 00:46:56,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:46:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) [2022-07-23 00:46:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-23 00:46:56,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:46:56,994 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:46:56,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:46:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:46:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash -897254435, now seen corresponding path program 1 times [2022-07-23 00:46:57,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:46:57,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606143519] [2022-07-23 00:46:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:46:57,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:46:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:46:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:46:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:46:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:46:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:46:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:46:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:46:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:46:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:46:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:46:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:46:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:46:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:46:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:46:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:46:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:46:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:46:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:46:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:46:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:46:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:46:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:46:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:46:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:46:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:46:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:46:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:46:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:46:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-23 00:46:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-23 00:46:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-23 00:46:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-23 00:46:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-23 00:46:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-23 00:46:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:46:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-07-23 00:46:58,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:46:58,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606143519] [2022-07-23 00:46:58,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606143519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:46:58,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:46:58,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:46:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574812380] [2022-07-23 00:46:58,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:46:58,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:46:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:46:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:46:58,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:46:58,154 INFO L87 Difference]: Start difference. First operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-23 00:47:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:02,568 INFO L93 Difference]: Finished difference Result 4045 states and 5977 transitions. [2022-07-23 00:47:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:47:02,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 321 [2022-07-23 00:47:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:02,609 INFO L225 Difference]: With dead ends: 4045 [2022-07-23 00:47:02,610 INFO L226 Difference]: Without dead ends: 2883 [2022-07-23 00:47:02,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:47:02,622 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 3727 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 2450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3890 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2450 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:02,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3890 Valid, 3466 Invalid, 5104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2450 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-23 00:47:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-07-23 00:47:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2140. [2022-07-23 00:47:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1429 states have (on average 1.2883135059482156) internal successors, (1841), 1459 states have internal predecessors, (1841), 541 states have call successors, (541), 170 states have call predecessors, (541), 169 states have return successors, (539), 535 states have call predecessors, (539), 539 states have call successors, (539) [2022-07-23 00:47:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2921 transitions. [2022-07-23 00:47:02,803 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2921 transitions. Word has length 321 [2022-07-23 00:47:02,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:02,805 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2921 transitions. [2022-07-23 00:47:02,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-23 00:47:02,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2921 transitions. [2022-07-23 00:47:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-23 00:47:02,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:02,813 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:02,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:47:02,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1710939226, now seen corresponding path program 1 times [2022-07-23 00:47:02,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:02,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085820366] [2022-07-23 00:47:02,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:02,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-23 00:47:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-23 00:47:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2022-07-23 00:47:03,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:03,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085820366] [2022-07-23 00:47:03,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085820366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:03,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:03,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:47:03,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723100096] [2022-07-23 00:47:03,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:03,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:47:03,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:03,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:47:03,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:47:03,345 INFO L87 Difference]: Start difference. First operand 2140 states and 2921 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 00:47:06,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:06,581 INFO L93 Difference]: Finished difference Result 5616 states and 8135 transitions. [2022-07-23 00:47:06,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 00:47:06,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 352 [2022-07-23 00:47:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:06,604 INFO L225 Difference]: With dead ends: 5616 [2022-07-23 00:47:06,604 INFO L226 Difference]: Without dead ends: 3546 [2022-07-23 00:47:06,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:47:06,618 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 4237 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 3267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4371 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 5385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3267 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:06,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4371 Valid, 2840 Invalid, 5385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3267 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-23 00:47:06,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2022-07-23 00:47:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 2066. [2022-07-23 00:47:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1373 states have (on average 1.2738528769118718) internal successors, (1749), 1403 states have internal predecessors, (1749), 523 states have call successors, (523), 170 states have call predecessors, (523), 169 states have return successors, (521), 517 states have call predecessors, (521), 521 states have call successors, (521) [2022-07-23 00:47:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2793 transitions. [2022-07-23 00:47:06,775 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2793 transitions. Word has length 352 [2022-07-23 00:47:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:06,776 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 2793 transitions. [2022-07-23 00:47:06,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 00:47:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2793 transitions. [2022-07-23 00:47:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-23 00:47:06,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:06,786 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:06,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:47:06,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:06,787 INFO L85 PathProgramCache]: Analyzing trace with hash 137240625, now seen corresponding path program 1 times [2022-07-23 00:47:06,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:06,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785699119] [2022-07-23 00:47:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:06,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-23 00:47:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-23 00:47:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:47:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-23 00:47:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-23 00:47:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-23 00:47:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2022-07-23 00:47:07,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:07,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785699119] [2022-07-23 00:47:07,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785699119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:07,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:07,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:47:07,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515489508] [2022-07-23 00:47:07,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:07,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:47:07,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:47:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:47:07,322 INFO L87 Difference]: Start difference. First operand 2066 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 00:47:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:10,059 INFO L93 Difference]: Finished difference Result 5260 states and 7525 transitions. [2022-07-23 00:47:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:47:10,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 346 [2022-07-23 00:47:10,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:10,091 INFO L225 Difference]: With dead ends: 5260 [2022-07-23 00:47:10,092 INFO L226 Difference]: Without dead ends: 3264 [2022-07-23 00:47:10,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:47:10,133 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 4062 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 2989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2989 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:10,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 2476 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2989 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-23 00:47:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2022-07-23 00:47:10,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 2028. [2022-07-23 00:47:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.265078183172003) internal successors, (1699), 1373 states have internal predecessors, (1699), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2022-07-23 00:47:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2727 transitions. [2022-07-23 00:47:10,237 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2727 transitions. Word has length 346 [2022-07-23 00:47:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:10,238 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2727 transitions. [2022-07-23 00:47:10,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 00:47:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2727 transitions. [2022-07-23 00:47:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-23 00:47:10,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:10,245 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:10,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:47:10,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 999442607, now seen corresponding path program 1 times [2022-07-23 00:47:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331018222] [2022-07-23 00:47:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:10,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-07-23 00:47:10,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:10,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331018222] [2022-07-23 00:47:10,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331018222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:10,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:10,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:47:10,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272871743] [2022-07-23 00:47:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:10,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:47:10,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:47:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:47:10,751 INFO L87 Difference]: Start difference. First operand 2028 states and 2727 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-07-23 00:47:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:13,097 INFO L93 Difference]: Finished difference Result 2778 states and 3916 transitions. [2022-07-23 00:47:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:47:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 348 [2022-07-23 00:47:13,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:13,127 INFO L225 Difference]: With dead ends: 2778 [2022-07-23 00:47:13,127 INFO L226 Difference]: Without dead ends: 2773 [2022-07-23 00:47:13,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:47:13,131 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 3273 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 2052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 3198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2052 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:13,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 1843 Invalid, 3198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2052 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-23 00:47:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-07-23 00:47:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2028. [2022-07-23 00:47:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.2643335815338794) internal successors, (1698), 1373 states have internal predecessors, (1698), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2022-07-23 00:47:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2726 transitions. [2022-07-23 00:47:13,252 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2726 transitions. Word has length 348 [2022-07-23 00:47:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:13,253 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2726 transitions. [2022-07-23 00:47:13,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-07-23 00:47:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2726 transitions. [2022-07-23 00:47:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-23 00:47:13,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:13,260 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:13,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:47:13,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1056700909, now seen corresponding path program 1 times [2022-07-23 00:47:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:13,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376029607] [2022-07-23 00:47:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-07-23 00:47:13,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:13,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376029607] [2022-07-23 00:47:13,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376029607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:13,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:13,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:47:13,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158976021] [2022-07-23 00:47:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:13,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:47:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:47:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:47:13,886 INFO L87 Difference]: Start difference. First operand 2028 states and 2726 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 00:47:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:18,196 INFO L93 Difference]: Finished difference Result 7417 states and 10635 transitions. [2022-07-23 00:47:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:47:18,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 348 [2022-07-23 00:47:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:18,223 INFO L225 Difference]: With dead ends: 7417 [2022-07-23 00:47:18,224 INFO L226 Difference]: Without dead ends: 5429 [2022-07-23 00:47:18,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:47:18,235 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 4413 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 3309 mSolverCounterSat, 3143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 6452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3143 IncrementalHoareTripleChecker+Valid, 3309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:18,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 3633 Invalid, 6452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3143 Valid, 3309 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-23 00:47:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2022-07-23 00:47:18,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 3949. [2022-07-23 00:47:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 2623 states have (on average 1.2683949675943575) internal successors, (3327), 2681 states have internal predecessors, (3327), 993 states have call successors, (993), 333 states have call predecessors, (993), 332 states have return successors, (1025), 983 states have call predecessors, (1025), 991 states have call successors, (1025) [2022-07-23 00:47:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 5345 transitions. [2022-07-23 00:47:18,425 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 5345 transitions. Word has length 348 [2022-07-23 00:47:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:18,426 INFO L495 AbstractCegarLoop]: Abstraction has 3949 states and 5345 transitions. [2022-07-23 00:47:18,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-23 00:47:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 5345 transitions. [2022-07-23 00:47:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-23 00:47:18,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:18,432 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:18,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 00:47:18,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:18,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash -138492121, now seen corresponding path program 1 times [2022-07-23 00:47:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:18,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747766669] [2022-07-23 00:47:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:18,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 00:47:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-23 00:47:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-23 00:47:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-23 00:47:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-07-23 00:47:18,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:18,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747766669] [2022-07-23 00:47:18,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747766669] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:47:18,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842001479] [2022-07-23 00:47:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:18,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:18,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:47:18,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:47:18,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 00:47:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:19,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:47:19,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:47:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2022-07-23 00:47:19,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:47:19,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842001479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:19,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:47:19,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-23 00:47:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080750656] [2022-07-23 00:47:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:19,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:47:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:19,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:47:19,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:47:19,706 INFO L87 Difference]: Start difference. First operand 3949 states and 5345 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 00:47:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:19,906 INFO L93 Difference]: Finished difference Result 8032 states and 10902 transitions. [2022-07-23 00:47:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:47:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 364 [2022-07-23 00:47:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:19,924 INFO L225 Difference]: With dead ends: 8032 [2022-07-23 00:47:19,924 INFO L226 Difference]: Without dead ends: 4153 [2022-07-23 00:47:19,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:47:19,935 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 202 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:19,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 2803 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:47:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2022-07-23 00:47:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4139. [2022-07-23 00:47:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2793 states have (on average 1.2753311851056213) internal successors, (3562), 2855 states have internal predecessors, (3562), 1005 states have call successors, (1005), 341 states have call predecessors, (1005), 340 states have return successors, (1037), 992 states have call predecessors, (1037), 1003 states have call successors, (1037) [2022-07-23 00:47:20,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5604 transitions. [2022-07-23 00:47:20,122 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5604 transitions. Word has length 364 [2022-07-23 00:47:20,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:20,122 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5604 transitions. [2022-07-23 00:47:20,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-23 00:47:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5604 transitions. [2022-07-23 00:47:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-07-23 00:47:20,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:20,132 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:20,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:47:20,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 00:47:20,347 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:20,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash -297851237, now seen corresponding path program 1 times [2022-07-23 00:47:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:20,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966460102] [2022-07-23 00:47:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-23 00:47:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-23 00:47:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-23 00:47:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-23 00:47:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-07-23 00:47:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2022-07-23 00:47:20,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:20,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966460102] [2022-07-23 00:47:20,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966460102] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:47:20,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785493729] [2022-07-23 00:47:20,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:20,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:47:20,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:47:20,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 00:47:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:21,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 4438 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:47:21,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:47:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2022-07-23 00:47:21,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:47:21,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785493729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:21,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:47:21,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-23 00:47:21,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264358864] [2022-07-23 00:47:21,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:21,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:47:21,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:47:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:47:21,807 INFO L87 Difference]: Start difference. First operand 4139 states and 5604 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-23 00:47:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:22,064 INFO L93 Difference]: Finished difference Result 10520 states and 14156 transitions. [2022-07-23 00:47:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:47:22,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 433 [2022-07-23 00:47:22,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:22,095 INFO L225 Difference]: With dead ends: 10520 [2022-07-23 00:47:22,095 INFO L226 Difference]: Without dead ends: 6455 [2022-07-23 00:47:22,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:47:22,112 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 912 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:22,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2868 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:47:22,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2022-07-23 00:47:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 6442. [2022-07-23 00:47:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6442 states, 4300 states have (on average 1.27) internal successors, (5461), 4398 states have internal predecessors, (5461), 1561 states have call successors, (1561), 581 states have call predecessors, (1561), 580 states have return successors, (1593), 1537 states have call predecessors, (1593), 1559 states have call successors, (1593) [2022-07-23 00:47:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6442 states to 6442 states and 8615 transitions. [2022-07-23 00:47:22,414 INFO L78 Accepts]: Start accepts. Automaton has 6442 states and 8615 transitions. Word has length 433 [2022-07-23 00:47:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:22,415 INFO L495 AbstractCegarLoop]: Abstraction has 6442 states and 8615 transitions. [2022-07-23 00:47:22,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-23 00:47:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6442 states and 8615 transitions. [2022-07-23 00:47:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-23 00:47:22,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:22,426 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:22,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 00:47:22,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-23 00:47:22,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1010392839, now seen corresponding path program 1 times [2022-07-23 00:47:22,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:22,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729876380] [2022-07-23 00:47:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-23 00:47:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-23 00:47:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-23 00:47:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-23 00:47:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-23 00:47:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-23 00:47:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-23 00:47:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2022-07-23 00:47:23,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:23,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729876380] [2022-07-23 00:47:23,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729876380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:23,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:23,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 00:47:23,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532295517] [2022-07-23 00:47:23,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:23,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 00:47:23,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:23,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 00:47:23,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:47:23,176 INFO L87 Difference]: Start difference. First operand 6442 states and 8615 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-23 00:47:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:27,095 INFO L93 Difference]: Finished difference Result 16078 states and 23275 transitions. [2022-07-23 00:47:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:47:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 422 [2022-07-23 00:47:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:27,132 INFO L225 Difference]: With dead ends: 16078 [2022-07-23 00:47:27,132 INFO L226 Difference]: Without dead ends: 9710 [2022-07-23 00:47:27,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:47:27,154 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 3093 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 2667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3185 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 5591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2667 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:27,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3185 Valid, 3414 Invalid, 5591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2667 Valid, 2924 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-23 00:47:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9710 states. [2022-07-23 00:47:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9710 to 6736. [2022-07-23 00:47:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 4498 states have (on average 1.263895064473099) internal successors, (5685), 4590 states have internal predecessors, (5685), 1617 states have call successors, (1617), 581 states have call predecessors, (1617), 620 states have return successors, (1783), 1643 states have call predecessors, (1783), 1615 states have call successors, (1783) [2022-07-23 00:47:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 9085 transitions. [2022-07-23 00:47:27,563 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 9085 transitions. Word has length 422 [2022-07-23 00:47:27,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:27,564 INFO L495 AbstractCegarLoop]: Abstraction has 6736 states and 9085 transitions. [2022-07-23 00:47:27,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-23 00:47:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 9085 transitions. [2022-07-23 00:47:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-07-23 00:47:27,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:27,576 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:27,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 00:47:27,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash -198998945, now seen corresponding path program 1 times [2022-07-23 00:47:27,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:27,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116891574] [2022-07-23 00:47:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:27,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-23 00:47:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-23 00:47:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-23 00:47:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-23 00:47:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-23 00:47:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-23 00:47:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-07-23 00:47:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-07-23 00:47:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2022-07-23 00:47:28,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116891574] [2022-07-23 00:47:28,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116891574] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:47:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238568892] [2022-07-23 00:47:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:28,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:47:28,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:47:28,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 00:47:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:29,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 4405 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-23 00:47:29,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:47:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2022-07-23 00:47:29,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:47:29,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238568892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:29,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:47:29,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-23 00:47:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216447417] [2022-07-23 00:47:29,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:29,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:47:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:47:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:47:29,342 INFO L87 Difference]: Start difference. First operand 6736 states and 9085 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-07-23 00:47:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:29,539 INFO L93 Difference]: Finished difference Result 10294 states and 13852 transitions. [2022-07-23 00:47:29,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:47:29,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 427 [2022-07-23 00:47:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:29,550 INFO L225 Difference]: With dead ends: 10294 [2022-07-23 00:47:29,551 INFO L226 Difference]: Without dead ends: 3627 [2022-07-23 00:47:29,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:47:29,571 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 14 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:29,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4364 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:47:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2022-07-23 00:47:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3573. [2022-07-23 00:47:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2395 states have (on average 1.2592901878914404) internal successors, (3016), 2442 states have internal predecessors, (3016), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-23 00:47:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4792 transitions. [2022-07-23 00:47:29,707 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4792 transitions. Word has length 427 [2022-07-23 00:47:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:29,707 INFO L495 AbstractCegarLoop]: Abstraction has 3573 states and 4792 transitions. [2022-07-23 00:47:29,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-07-23 00:47:29,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4792 transitions. [2022-07-23 00:47:29,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-07-23 00:47:29,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:29,715 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:29,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 00:47:29,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:29,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:29,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:29,928 INFO L85 PathProgramCache]: Analyzing trace with hash 168754272, now seen corresponding path program 1 times [2022-07-23 00:47:29,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:29,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306849525] [2022-07-23 00:47:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:29,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:47:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-23 00:47:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-23 00:47:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-23 00:47:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-23 00:47:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-23 00:47:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-07-23 00:47:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-23 00:47:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-23 00:47:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-07-23 00:47:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-07-23 00:47:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2022-07-23 00:47:30,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:30,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306849525] [2022-07-23 00:47:30,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306849525] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:47:30,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591765243] [2022-07-23 00:47:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:30,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:30,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:47:30,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:47:30,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 00:47:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:31,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 4786 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 00:47:31,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:47:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2022-07-23 00:47:31,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:47:31,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591765243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:31,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:47:31,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-23 00:47:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553340206] [2022-07-23 00:47:31,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:31,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:47:31,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:31,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:47:31,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:47:31,937 INFO L87 Difference]: Start difference. First operand 3573 states and 4792 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-23 00:47:32,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:32,261 INFO L93 Difference]: Finished difference Result 7061 states and 9679 transitions. [2022-07-23 00:47:32,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 00:47:32,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 487 [2022-07-23 00:47:32,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:32,272 INFO L225 Difference]: With dead ends: 7061 [2022-07-23 00:47:32,272 INFO L226 Difference]: Without dead ends: 3597 [2022-07-23 00:47:32,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-07-23 00:47:32,280 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 24 mSDsluCounter, 8477 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 9900 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:32,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 9900 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:47:32,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2022-07-23 00:47:32,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3585. [2022-07-23 00:47:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 2407 states have (on average 1.2579975072704612) internal successors, (3028), 2454 states have internal predecessors, (3028), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-23 00:47:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 4804 transitions. [2022-07-23 00:47:32,410 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 4804 transitions. Word has length 487 [2022-07-23 00:47:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:32,411 INFO L495 AbstractCegarLoop]: Abstraction has 3585 states and 4804 transitions. [2022-07-23 00:47:32,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-23 00:47:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 4804 transitions. [2022-07-23 00:47:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2022-07-23 00:47:32,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:32,419 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:32,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 00:47:32,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:32,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2142027694, now seen corresponding path program 1 times [2022-07-23 00:47:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:32,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066468954] [2022-07-23 00:47:32,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:32,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:32,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:47:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-23 00:47:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-23 00:47:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-23 00:47:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-23 00:47:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-23 00:47:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-07-23 00:47:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-07-23 00:47:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-23 00:47:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-07-23 00:47:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-07-23 00:47:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2022-07-23 00:47:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-07-23 00:47:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 00:47:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:47:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 00:47:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:47:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:47:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:47:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 00:47:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:47:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2086 trivial. 0 not checked. [2022-07-23 00:47:33,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:33,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066468954] [2022-07-23 00:47:33,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066468954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:47:33,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:47:33,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 00:47:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095326409] [2022-07-23 00:47:33,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:47:33,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 00:47:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:47:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 00:47:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:47:33,246 INFO L87 Difference]: Start difference. First operand 3585 states and 4804 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-23 00:47:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:47:36,737 INFO L93 Difference]: Finished difference Result 8534 states and 12359 transitions. [2022-07-23 00:47:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:47:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 580 [2022-07-23 00:47:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:47:36,769 INFO L225 Difference]: With dead ends: 8534 [2022-07-23 00:47:36,770 INFO L226 Difference]: Without dead ends: 5058 [2022-07-23 00:47:36,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:47:36,780 INFO L413 NwaCegarLoop]: 1308 mSDtfsCounter, 2273 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 1865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1865 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:47:36,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 3372 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1865 Valid, 3166 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-23 00:47:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5058 states. [2022-07-23 00:47:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5058 to 3585. [2022-07-23 00:47:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 2407 states have (on average 1.2530120481927711) internal successors, (3016), 2454 states have internal predecessors, (3016), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-23 00:47:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 4792 transitions. [2022-07-23 00:47:36,994 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 4792 transitions. Word has length 580 [2022-07-23 00:47:36,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:47:36,994 INFO L495 AbstractCegarLoop]: Abstraction has 3585 states and 4792 transitions. [2022-07-23 00:47:36,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-23 00:47:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 4792 transitions. [2022-07-23 00:47:37,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-07-23 00:47:37,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:47:37,002 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:47:37,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 00:47:37,003 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:47:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:47:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash 124789480, now seen corresponding path program 1 times [2022-07-23 00:47:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:47:37,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844532898] [2022-07-23 00:47:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:47:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:47:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:47:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:47:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:47:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:47:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:47:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:47:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:47:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:47:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:47:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:47:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-23 00:47:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 00:47:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:47:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:47:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-23 00:47:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:47:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:47:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:47:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-23 00:47:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-23 00:47:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:47:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-23 00:47:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-23 00:47:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-23 00:47:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-23 00:47:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-23 00:47:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-23 00:47:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-23 00:47:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-23 00:47:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-23 00:47:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-23 00:47:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-23 00:47:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:47:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2022-07-23 00:47:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-23 00:47:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-23 00:47:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-23 00:47:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-23 00:47:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:47:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:47:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:47:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-07-23 00:47:37,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:47:37,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844532898] [2022-07-23 00:47:37,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844532898] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:47:37,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708844661] [2022-07-23 00:47:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:47:37,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:47:37,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:47:37,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:47:37,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 00:47:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:47:38,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 4858 conjuncts, 168 conjunts are in the unsatisfiable core [2022-07-23 00:47:38,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:47:38,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-23 00:47:38,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-23 00:47:39,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:39,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:40,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-23 00:47:44,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-07-23 00:47:44,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-07-23 00:47:48,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-07-23 00:47:48,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-07-23 00:47:57,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-07-23 00:47:57,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-07-23 00:48:18,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-07-23 00:48:18,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-07-23 00:48:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:48:29,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2022-07-23 00:48:29,069 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 00:48:29,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 54 [2022-07-23 00:48:29,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-07-23 00:48:38,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:48:38,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 00:48:38,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-23 00:48:38,484 INFO L356 Elim1Store]: treesize reduction 38, result has 7.3 percent of original size [2022-07-23 00:48:38,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 47 [2022-07-23 00:48:38,493 INFO L356 Elim1Store]: treesize reduction 37, result has 7.5 percent of original size [2022-07-23 00:48:38,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 10 [2022-07-23 00:48:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 63 proven. 573 refuted. 2 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-07-23 00:48:38,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:48:38,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708844661] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:48:38,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:48:38,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16] total 25 [2022-07-23 00:48:38,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744161375] [2022-07-23 00:48:38,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:48:38,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-23 00:48:38,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:48:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-23 00:48:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=652, Unknown=31, NotChecked=0, Total=756 [2022-07-23 00:48:38,698 INFO L87 Difference]: Start difference. First operand 3585 states and 4792 transitions. Second operand has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) [2022-07-23 00:49:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:49:03,939 INFO L93 Difference]: Finished difference Result 9223 states and 13439 transitions. [2022-07-23 00:49:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-23 00:49:03,940 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) Word has length 506 [2022-07-23 00:49:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:49:03,960 INFO L225 Difference]: With dead ends: 9223 [2022-07-23 00:49:03,960 INFO L226 Difference]: Without dead ends: 5673 [2022-07-23 00:49:03,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 686 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 71.4s TimeCoverageRelationStatistics Valid=304, Invalid=1999, Unknown=49, NotChecked=0, Total=2352 [2022-07-23 00:49:03,968 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 2935 mSDsluCounter, 7746 mSDsCounter, 0 mSdLazyCounter, 11599 mSolverCounterSat, 2677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3033 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 25087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2677 IncrementalHoareTripleChecker+Valid, 11599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10811 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:49:03,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3033 Valid, 9046 Invalid, 25087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2677 Valid, 11599 Invalid, 0 Unknown, 10811 Unchecked, 7.4s Time] [2022-07-23 00:49:03,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2022-07-23 00:49:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 3652. [2022-07-23 00:49:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2452 states have (on average 1.2495921696574226) internal successors, (3064), 2491 states have internal predecessors, (3064), 859 states have call successors, (859), 313 states have call predecessors, (859), 340 states have return successors, (956), 890 states have call predecessors, (956), 857 states have call successors, (956) [2022-07-23 00:49:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 4879 transitions. [2022-07-23 00:49:04,171 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 4879 transitions. Word has length 506 [2022-07-23 00:49:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:49:04,172 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 4879 transitions. [2022-07-23 00:49:04,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) [2022-07-23 00:49:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 4879 transitions. [2022-07-23 00:49:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2022-07-23 00:49:04,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:49:04,180 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:49:04,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 00:49:04,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-23 00:49:04,392 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:49:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:49:04,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1287528998, now seen corresponding path program 1 times [2022-07-23 00:49:04,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:49:04,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494812191] [2022-07-23 00:49:04,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:49:04,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:49:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:49:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 00:49:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:49:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:49:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:49:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:49:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 00:49:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:49:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:49:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:49:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:49:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-23 00:49:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-23 00:49:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-23 00:49:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-23 00:49:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-23 00:49:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-23 00:49:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-23 00:49:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-23 00:49:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-23 00:49:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-23 00:49:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-23 00:49:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-23 00:49:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-23 00:49:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-23 00:49:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-23 00:49:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-23 00:49:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-23 00:49:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-23 00:49:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-23 00:49:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-23 00:49:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:49:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-23 00:49:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-23 00:49:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-23 00:49:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 00:49:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2022-07-23 00:49:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-23 00:49:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-07-23 00:49:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-23 00:49:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-07-23 00:49:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:49:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:49:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:49:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-07-23 00:49:05,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:49:05,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494812191] [2022-07-23 00:49:05,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494812191] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:49:05,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046951892] [2022-07-23 00:49:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:49:05,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:49:05,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:49:05,515 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:49:05,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 00:49:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:49:06,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 4948 conjuncts, 239 conjunts are in the unsatisfiable core [2022-07-23 00:49:06,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:49:06,996 INFO L356 Elim1Store]: treesize reduction 84, result has 30.6 percent of original size [2022-07-23 00:49:07,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 275962835 treesize of output 274905203